Question

an onto function means that every element in the codomain must have a qunique preimage true of false

Answer 1

Answer:

False

Step-by-step explanation:

Onto function:-

Let two non empty  set A and B .The function is defined  from set A to set B.

If the function is onto then every element of y in codomain  B has at-least one pre-image in the domain A .

Or

For every element in y codomain , there is at least one element  x in the domain A such that

f(x)=y

If the function is onto then

Range=Codomain

If the function is onto then every element in the co-domain musta have a pre-image not unique.

Therefore, the given statement is false.